Brick for chimneys



(No Model.)

G. A. KEGK.

' BRICK FOR GHIMNEYS. No; 375,753. Patented Jan; 3, 1888.

WITNESSES INVENTOR N, PETERS. PholwLillmgmplver. Washi c.

UNITED STATES PATENT OFFICE.

GEORGE A. KEOK, OF OERRO GORDO, ILLINOIS.

BRICK FOR CHIMNEYS.

EPECIFICATIOII forming part of Letters Patent No. 375,753, dated January3, 1888.

Application filed October 20, 1886. Serial No, 216.742.

(No model.)

To all whom it may concern:

Be it known that I, GEORGE A. KEoK, a citizen of the United States, anda resident of Gerro Gordo, in the county of Piatt and State of Illinois,have invented certain new and useful Improvements in Chimneys; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings,and to letters or figures of reference markedthereon, which form a part of this specification.

Figure 1 of the drawings is a representation of my invention and is aperspective view of the same. Fig. 2 is a top view. Fig. 3 is a detailview.

My invention relates to chimneys for dwellings and other structures; andit consists in the novel conformation and combination ofthe bricks fromwhich the chimney is built, the object being to provide a chimney thatshall be rectangular in form in outline in crosssection, the flue formedby laying the bricks properly together being circular in plan view, ashereinafter described, and pointed out in the claim.

Referring by letter to" the accompanying drawings, A designates one ofthe bricks used in building my improved chimney. The bricks are all ofthe same configuration or shape and are laid in two positions, so far astheir butts and points are concerned, in order to break joints and atthe same time produce the required rectangular outline and the circularflue or smoke-passage B.' These bricks are laid in good cement or mortarafter the usual manner of laying ordinary bricks in building chimneys orwalls.

The bricks are made in different sizes, to produce small or largechimneys, the bricks used in the same structure, however, being all ofthe same size, so that four bricks only are required to constitute alayer in the chimney.

The chimney may be erected as other chimneys are, so far as the locationand place of beginning the structure are concerned.

A description of one of the bricks will an swer for all. i

The brick is made of clay, and is burnt in the usual manner in a kiln. V

The outer end of the brick-that is, the end 0 of the brick, that isexposed in the outer surface of the wall-is at a right angle to the backedge, D, or outer longer edge of said brick.

The inner edge, E, of the brick is bounded by an irregular curve, F,intermediately of its ends, which makes the inner edge of the exposedportion of the brick, when in the wall, concave. The inner or smallerend, G, of the brick is beveled at H to fit the bevel I of the largerend of the adjacent brick in the same layer of bricks.

I anraware that it is not new to make a bindingbloek with doubleprismatic ends and concavoplano sides. I am also aware that it is old tomake a similar block with a single prismatic end.

Having described this invention, what I claim, and desire to secure byLetters Patent,

As an improved article of manufacture, a building-block having aplainlongitudinal side, D, extending from a short rectangular end, G, to anacute-angled end, H, the end wall, 0, meeting an acute-angled wall, I,the said walls II and I being connected by an inner concave wall, F,bounded by the curve E, as set forth.

In testimony whereof I affix my signature in presence of two witnesses.I

. GEORGE A. KEOK.

\Vitnesses:

S. M. FUNK, O. A. SHIVELY.

